package com.itheima.reggie.controller;

import com.itheima.reggie.common.R;
import org.apache.tomcat.util.http.fileupload.IOUtils;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.UUID;

@RestController
@RequestMapping("/common")
public class CommonController {
    @Value("${reggie.path}")
    private String path;
    @PostMapping("/upload")
    public R<String>update(MultipartFile file) throws IOException {
        File dir = new File(path);
        if (!dir.exists()){
            dir.mkdirs();
        }
        String originalFilename = file.getOriginalFilename();
        String suffix = originalFilename.substring(originalFilename.lastIndexOf("."));
        String fileName = UUID.randomUUID().toString() + suffix;
        file.transferTo(new File(path+fileName));
        return R.success(fileName);
    }
    @GetMapping("/download")
    public void download(HttpServletResponse response, String name) throws IOException {
        FileInputStream is = new FileInputStream(path+name);
        ServletOutputStream os = response.getOutputStream();
        IOUtils.copy(is,os);
        is.close();
    }


}
